Velocity metrics measure adoption as sheer output volume, and volume is motion, not value. You can be adopting a tool faster every quarter by that measure and getting less from it every quarter in reality, because the thing you scaled was production and the thing you skipped was everything that makes production worth keeping.
A capability no one uses is worth precisely what a capability no one built is worth: nothing. Except this one cost more and let more people down. The work isn't finished when the tool ships. It's finished when the old way is gone, because no one wants it back.
